// functional/Closure9.java
// (c)2017 MindView LLC: see Copyright.txt
// We make no guarantees that this code is fit for any purpose.
// Visit http://OnJava8.com for more book information.
// {WillNotCompile}

import java.util.ArrayList;
import java.util.List;
import java.util.function.Supplier;

public class Closure9 {
//    Supplier<List<Integer>> makeFun() {
//        List<Integer> ai = new ArrayList<>();
//        ai = new ArrayList<>(); // Reassignment
//        return () -> ai;
//    }
}

/*
错误: 从lambda 表达式引用的本地变量必须是最终变量或实际上的最终变量

*/